<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>购物车案例</title>
    <!-- //导入css -->
    <link rel="stylesheet" href="./res/style.css">
</head>
<body>
    <div id="app">
        <div v-if="books.length>0">
       <table>
        <thead>

            <tr>
                <th></th>
                <th>书籍名称</th>
                <th>出版日期</th>
                <th>价格</th>
                <th>购买数量</th>
                <th>操作</th>
            </tr>
        </thead>
        <tbody>
            <tr v-for="(item,index) in books">
                <td>{{item.id}}</td>
                <td>{{item.name}}</td>
                <td>{{item.date}}</td>
                <td>{{"￥"+item.price.toFixed(2)}}</td>
                <td> <button @click="decrease(index)" :disabled="item.count < 1">-</button> {{item.count}} 
                     <button @click="increase(index)">+</button> </td>
                <td><button @click="remove(index)">移除</button></td>
            </tr>
        </tbody>
       </table>
       <!-- <h4>总价{{"￥"+totalPrice.toFixed(2)}}</h4> -->
       <!-- <h4>总价{{showPrice(totalPrice)}}</h4> -->
       <!-- <h4>总价{{totalPrice | improvePrice}}</h4> -->
    </div>
    <h2 v-else>购物车为空</h>
</div>
<!-- 导入vue.js -->
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<!-- 导入自定义js -->
    <script src="./js/main.js"></script>

</body>
</html>